DF 65
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BrandPhilips
ClassA.F. Subminiature Pentode for hearing aids
BaseSubminiature
Construction
Primary TypePentode
EnvelopeSubminiature
SectionsSingle
Filament / Heater
MaterialDirect DC
Absolute Maximum Ratings
Plate Voltage45 V
Plate Dissipation0.0015 W
Grid 2 Voltage45 V
Grid 1 Voltage-0.2 V
Cathode Current0.075 mA
Audio Performance
Key Features
- Directly heated
- Subminiature construction
- Hearing aid optimized
- Series or parallel heating supply
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Characteristic | 22.5V | 100 | 4000000 | 8.7 | 0.05mA |
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